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(No Model.)

B. H. JENKINS.

ELEOTRO MAGNETIC GAS LIGHTER.

No. 293,330. Patented Feb; 12, 1884.

N PETERS. Plmle UNITED STATES PATENT @rricn.

EVANS H. JENKINS, OF BIG *IllIONI), INDIANA.

ELECTRO-MAGNETIG GAS-LIGH SPECIFICATION forming part of Letters PatentNo. 293,330, dated February 12, 1884.

(X0 model.)

To all whom it may concern Be it known that I, Evans II. JENKINS, acitizen of the United States, residing at Rielmond, in the county of Tiayne and State of Indiana, have invented certain new and usefulImprovements in Electro-Magnetic Gas- Lighters, of which the followingis a speeilica tion.

My invention relates to that class of gasligliters in which an electriccurrent serves as the means for lighting and extinguishing the jet ofgas at the burner by opening and closing a valve which controls thepassage of the gas to the burner, such current acting thus through themedium of an electro-magnet and an armature connected with thevalve-operating devices, a constant flame or taper-light beingmaintained at the burner-tip, for the purpose of igniting the jet of gaswhen the latter is turned on full head by the valve action.

My invention has for its object to secure an accurate and reliableaction or" the valveoperating connections; and a "further object of myinvention is to provide an improved casin g or housing for my improvedoperating mechanism, which shall be so arranged as to form an upperandalower compartment, each of which shall be completely isolated fromthe other.

To the above ends my invention consists in the provision of a levercarrying the armature, a counterweight, and a valve for regulating theflow of gas to the burner, and mounted pivotally upon an adjustablefulcrum in such manner as to be self-adjusting; also, in theprovision ofa conoidal valve attached to the said lever, and a valveseat of peculiarform located in one end of the gas-ingress tube.

My invention consists, further, in the provision of apeculiarly-arranged casing for my improved apparatus having its upperand lower sections united by a lapped joint, and provided with athirdsection, peculiarly formed and arranged, by which th said casing isdivided into an upper and a lower conipartnient, each of which iscompletely isolated from the other.

My invention further consists in certain details of construction,hereinafter described and claimed.

In the drawings which accompany this specification, forming a partthereof, Figure l is a vertical sectional view of my improved apparatus.Fig. 2 isa top view of the bottomplate of the gas-chamber, showing theposition of the tilting lever, the armature, and the valve attachment.Fig. 3 is a vertical cross-section view of my improved apparatus. Fig.dis an outline view of the base-plate upon which the working parts rest,and to which they are attached.

Like letters refer to like parts.

The letter A in Figs. 1 and 3 designates a cylindrical metallic easing,into which is fitted acylindrical dome, B, which is removable. The upperportion of the casing A is made slightly flaring, and forms a tightjoint be tween the surfaces of the using and the dome, as seen at O.

D is a sub-cylinder, closed at the top, formic an inverted cup, and madeto pass inside of the casing A, in which it fits tightly, occupying theupper section thereof, and the top plate, (I, of which forms the bottomof the gas-chainher, which is composed of the interior of the dome l3and the plated. The divided containingcasing thus constructed is greatlysuperior in point of rigidity and impermeability to atmosphericinfluences to those casings in which the contiguous edges of thesections are separated by the external flange of the di viding plate ordiaphragm.

E is a pipe extending from the dome L up to and sustaining the burner Gand burnerguard Y.

1* is a slotted screw-tap working on a screwthread inside of the pipeIE, throughwhich the gas passes to the burner.

G is a gas-burner of the ordinary construction.

H, Figs. 1 and 3, is the main supply gaspipe, and a is thescrewconnection. n is the base-plate, which sustains the coils ff of themagnet.

ll is a circular plate, having semicircular recesses cut out of itsperiphery, placed horizontally at a point near the bottom of the ens ingA, and having a hole in its center, through which the upper end of thesupply-pipe II passes into and is connected with a hollow collar, g,whicn is closed at its upper end, forming a chamber, which rests upontheupper surface of the plate U. Curved branch gassupply pipes J and Kare connected with the col lar or chamber g on opposite sides, andextend 2 I eeaaae upward inside of the sub case or cylinder D,"

' the gas-chamber is chambered out to receive i seen at R, Figs. 1 and2.

a conoidal valve, L, which is secured to one end of a tilting lever, N.The mouth of the curved branch pipe J thus chambered out formsavalveseat for the conoidal valve, L. The periphery of the valve-scat isbeveled on the outer surface, reducing the upper portionof thevalve-seat to an edge.

N is a tilting lever, pivoted near its longitudinal center, and carryingthe conoidal valve L at one end and a eounterbalance-weight, S, at theopposite end. A set-screw, Q, is in serted in the weight end of thetilting lever N, and extends through the weight and far enough below itto rest upon the plate (I, and by its action regulates the extent of thevibrations of the tilting lever N.

Attached to the lever N, between the pivot and the valve L, andimmediately in front of the pivot, is the armature 0, (see Fig. 2,) theopposite ends of which correspond with the position of the poles of themagnet, 13 I, to

which the ends of the armature are attracted by the closing of thecurrent. The weight end of the tilting lever N is provided with anopening, to allow the upper end of the curved branch supply-pipe K topass through it, as The upper open end of the supply branch pipe K isprovided with a female screw-thread, into which a slotted male screw isinserted. The slot in the male screw R is raisedor lowered by turningthe screw, and as much of the opening is brought above the end of thepipe as may be required to supply gas for ataper or continuous burner.The stem M of the conoidal valve L is loosely inserted in the end of thetilting lever N, by which an oscillating motion of the valve ispermitted, making the valve practically selfadjusting in its seat.Vertical ears projecting downward from the under surface of the tiltinglever N are furnished with holes to receive the pin which serves as theaxis or pivot upon which the tilting lever has its vibrations,afulcrum,.Z, formed of a base-plate and a lug or ear turned up upon eachedge of said plate at right angles, forming vertical supports for thepivot-pin, and fitting closely outside the pendent ears of the lever N,and provided with holes to receive said pivot-pin corresponding with thepin-holes in said ears, (seen at Z, Figs. 1 and 3.) The bottom plate ofthe fulcrum Z has an oblong opening at or near its center, through whicha screw passes, said screw having its thread in the plate (I. Thefulcrumplate is thus permitted lateral motion around the screw, theeffect of which is to allow the adjustment of the tilting lever N andpromote U the self-adjusting functions of the eonoidal valve L.

The magnets are of the common form used in telegraph-instruments, andthe armature is operated substantially in the same manner.

The curved branch supply-pipes. J and K, where they pass through theplate d, are suitably packed to secure a tight joint and prevent theescape of gas from the chamber.

It will be seen that the tilting lever N and its attachments, the polesof the magnet, 19 P, and the valve-seat and taper-supply screw R are allcontained within the gas-ehamber,an(l are each and all of them securedto and rest upon the plate d.

The sub-cylinder I) may be provided with vertical side strips forsupports, secured to the circular plate U or otherwise, or it may besupported by the magnet f, or in any other.

suitable manner. A screw, t, is placed within the hollow collar g,passing through the top of the same, and having its terminus thread onthe base-bar n of the magnet. The hollow collar g is attached to thecircular plateU, and tightening the screw 25 brings the hollow collar gand the plate a rigidly in connection. The poles l? P, Fig. 2, havescrews 9 g, which penetrate the cores of the magnets f f, with shouldersformed on their heads, which rest upon the plate (Z, securing it rigidlyto the magnets ff when the screws are turned down to their limit.

The binding-posts I I are of the usual form,

and are connected with the magnets in the usual manner.

Having thus fully described my said invention, what I claim as new, anddesire to secure by Letters Patent, is

1. In an electro-magnetic gasdighter, the combination, with anelectro-magnet and a gas-inlet duct provided with a valve seat, of a ICOcounterbalanced tilting lever mounted pivotally upon an adjustablefulcrum, an armature attached to said lever, and a conoidal valve, alsoattached to said lever and arranged to operate in conjunction with thevalve-seat of the gas-inlet duet, substantially as and for the purposesdescribed.

2. The combination, with an electro-magnet and a gas-inlet duct providedwith avalveseat, of a tilting lever carrying an armature, and a conoidalvalve arranged to act in con- IIO junction with the valve-seat andmounted pivotally upon an adjustable fulcrum, a counterbalance-weightattached to said lever, and a screw passing through the counter-weightand arranged to limit the descent of said weight, substantially as andfor the purposes set forth.

3. The combination, with an electro-magnet, a main gas-inlet ductprovided with a valve-seat, and an auxiliary gas-inlet duct providedwith an adjustable discharge-opening, of a tilting lever mountedpivotally upon an adjust-able fulcrum, an armature attached to saidlever, a conoidal valve, also attached to said lever and arranged to actin conjunction with the valve-seat, and a counterbalanceweight mountedupon said lever and provided with an aperture for the reception of theup- Z, the armature 0, attached to said lever, the

'counterbalanceweight S, with its regulating screw Q, and the conoidalvalve L, secured movably to the lever by its stem M, and arranged tooperate in conjunction with the said beveled valve-seat, substantiallyas set forth.

5. The combination, with the eleetro-magnet f f, the inlet-duct H, thebranch duct J, provided at its upper extremity with the beveledvalve-seat, and the auxiliary branch duct K, of the sub-cylinder D,provided with the inverted cover for the terminus of said duct, theadjusting-screw R, the tilting lever N, mounted upon an adjustablefulcrum secured to said sub-cylinder, the conoidal valve L, securedmovably by its stem to said lever, the apertured counter-weight S, andthe armature O, mounted upon said lever, substantially as described.

6. The combination, with the casing-sections A B, the sub-cylinder D,and the base plate U, of the chamber g, the plate a, the magnet f f, thescrew 2?, connecting the said chamber with the plate a, the screws a,connecting the plate a to the base of the magnet, and the screws 9,connecting the upper ends of the magnet to the plate (Z of sub-cylinderD, substantially as specified. '7. The combination, withthe casing andthe sub-cylinder, the counterbalanced lever carrying the armature andthe conoidal valve, and the electromagnet, of the base-plate n, theaperture chamber 9, and the branches J K, opening from the apertures insaid chamher, said branch J being provided with a valveseat for theconoiual valve, and said branch I being provided with an adjustablevalve, substantially as herein set forth.

In testimony whereof Iaiiixmy signature in presence of two witnesses.

EVANS H. JENKINS.

.Vitnesses:

J OHN F. ROBBINS, XV. T. DENNIS.

